71343953 has 16 divisors (see below), whose sum is σ = 76340352. Its totient is φ = 66528000.

The previous prime is 71343949. The next prime is 71343967. The reversal of 71343953 is 35934317.

It is a cyclic number.

It is not a de Polignac number, because 71343953 - 2² = 71343949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (71343253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295913 + ... + 296153.

It is an arithmetic number, because the mean of its divisors is an integer number (4771272).

Almost surely, 2^71343953 is an apocalyptic number.

It is an amenable number.

71343953 is a deficient number, since it is larger than the sum of its proper divisors (4996399).

71343953 is a wasteful number, since it uses less digits than its factorization.

71343953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536.

The product of its digits is 34020, while the sum is 35.

The square root of 71343953 is about 8446.5349700336. The cubic root of 71343953 is about 414.7493585008.

The spelling of 71343953 in words is "seventy-one million, three hundred forty-three thousand, nine hundred fifty-three".